Alert archive / Kansas / Areal Flood Advisories in 2021
Areal Flood Advisory 49, NWS Topeka, KS
NWS Topeka, KS issued this areal flood advisory at Jul 15, 2021, 11:37 PM CDT for 4 counties in Kansas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 15, 2021, 11:37 PM CDT (04:37 UTC)
- Expired
- Jul 16, 2021, 2:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
Counties Anderson County, KS, Coffey County, KS, Franklin County, KS, Osage County, KS
The radar
The Topeka radar (KTWX), 90 km from the middle of the area, began a volume at 04:40 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 4.6 hours before the alert went out and 66 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1579 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- -69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Topeka, KS wrote its last area forecast discussion before this areal flood advisory went out at Jul 15, 6:46 PM CDT, 4 hours 51 minutes earlier.
Area forecast discussion, Jul 15, 6:46 PM CDT, 4 hours 51 minutes before
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</html>Hazardous weather outlook, Jul 15, 3:39 PM CDT, 7 hours 58 minutes before
Hazardous Weather Outlook National Weather Service Topeka KS 339 PM CDT Thu Jul 15 2021 KSZ008>012-020>024-026-034>040-054>056-058-059-162045- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 339 PM CDT Thu Jul 15 2021 This hazardous weather outlook is for east central...north central and northeast Kansas. .DAY ONE...This Afternoon and tonight. At least scattered showers and isolated thunderstorms will continue into the evening. Additional moderate to heavy rainfall occur which could lead to flash flooding, especially where heavy rains fell earlier today. The Flash Flood Watch continues for much of the area into the late evening. Severe weather is not expected with these thunderstorms. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed through tonight. && More detailed information can be accessed at... http://www.weather.gov/top/sitrep
In the hours before
Local storm report, Jul 15, 6:02 PM CDT, 5 hours 35 minutes before
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<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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</html>The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 1:54 AM CDT | Areal Flood Advisory | TOP | Anderson, Coffey, Lyon | 3 hr |
| Jul 16, 9:54 AM CDT | River Flood Warning | TOP | Franklin, Osage | 5 hr |
Nearby
Areal Flood Advisories in Kansas, 2021Every areal flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.